source: opengl-game/opengl-game.cpp@ ed7c953

feature/imgui-sdl points-test
Last change on this file since ed7c953 was ed7c953, checked in by Dmitry Portnoy <dmitry.portnoy@…>, 5 years ago

Print an error message when game-gui fails to create a window

  • Property mode set to 100644
File size: 1.6 KB
Line 
1#include "opengl-game.hpp"
2
3#include <iostream>
4
5#include "consts.hpp"
6
7#include "game-gui-glfw.hpp"
8
9using namespace std;
10
11OpenGLGame::OpenGLGame() {
12 gui = nullptr;
13 window = nullptr;
14}
15
16OpenGLGame::~OpenGLGame() {
17}
18
19void OpenGLGame::run(int width, int height, unsigned char guiFlags) {
20 if (initWindow(width, height, guiFlags) == RTWO_ERROR) {
21 return;
22 }
23
24 initOpenGL();
25 mainLoop();
26 cleanup();
27}
28
29bool OpenGLGame::initWindow(int width, int height, unsigned char guiFlags) {
30 gui = new GameGui_GLFW();
31
32 if (gui->init() == RTWO_ERROR) {
33 cout << "UI library could not be initialized!" << endl;
34 cout << gui->getError() << endl;
35 return RTWO_ERROR;
36 }
37 cout << "GUI init succeeded" << endl;
38
39 window = (GLFWwindow*) gui->createWindow("OpenGL Game", width, height, guiFlags & GUI_FLAGS_WINDOW_FULLSCREEN);
40 if (window == nullptr) {
41 cout << "Window could not be created!" << endl;
42 cout << gui->getError() << endl;
43 return RTWO_ERROR;
44 }
45
46 int actualWidth=0, actualHeight=0;
47 gui->getWindowSize(&actualWidth, &actualHeight);
48
49 cout << "Target window size: (" << width << ", " << height << ")" << endl;
50 cout << "Actual window size: (" << actualWidth << ", " << actualHeight << ")" << endl;
51
52 return RTWO_SUCCESS;
53}
54
55void OpenGLGame::initOpenGL() {
56}
57
58void OpenGLGame::mainLoop() {
59 while (!glfwWindowShouldClose(window)) {
60 glfwPollEvents();
61
62 if (GameGui_GLFW::s_keyState[GLFW_KEY_ESCAPE] == GLFW_PRESS) {
63 glfwSetWindowShouldClose(window, 1);
64 }
65
66 glfwSwapBuffers(window);
67 }
68}
69
70void OpenGLGame::cleanup() {
71 gui->destroyWindow();
72 gui->shutdown();
73 delete gui;
74}
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